You can only use 1 of the following effects of "Capshell" per turn, and only once that turn.
• If this card is Tributed: You can draw 1 card.
• If this card is used as material for a Fusion, Synchro, or Link Summon: You can draw 1 card.
• If this card is detached from an Xyz Monster to activate that monster's effect: You can draw 1 card.